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1 Installation Instructions V46 Issue Date 11//1 V46 Series -Way Pressure-Actuated Water-Regulating Valves With Union Fittings Application IMPORTANT: The V46 Series -Way Pressure-Actuated Water-Regulating Valves are intended to control water flow under normal equipment operating conditions. Where failure or malfunction of the V46 valves could lead to an abnormal operating condition that could cause personal injury or damage to the equipment or other property, other devices (limit or safety controls) or systems (alarm or supervisory) intended to warn of, or protect against, failure or malfunction of the V46 valve must be incorporated into and maintained as part of the control system. Dimensions A C D B The V46 direct-acting models open on an increase in pressure. The V46 valves with Union fittings are available in 1/-in. through 1-1/4-in. sizes and may be used with standard non-corrosive refrigerants. Installation Port 1 Port E IMPORTANT: If these valves are installed on equipment that contains hazardous or regulated materials, such as refrigerants or lubricants, the installer and user should observe all regulations governing the handling and containment of those materials. Pressure connection and capillary as specified Figure 1: V46 Valve Dimensions For Models With Union Fittings IMPORTANT: It is recommended to apply a non-hardening, pliable sealant (Loctite 67 or equivalent) to the face of the copper tailpiece to compensate for slight piping misalignments and surface imperfections on union ends. Table 1: V46 Valve Dimensions, inches (millimeters) Code Number Valve A B C D E V46AJ-C 1/ in. 4-9/16 (11) 1-13/16 (47) 6-3/8 (16) 3-3/4 (96) V46EK-C 3/4 in. -3/8 (136) () 6-13/16 (173) 4-3/16 (6) -/8 (67) V46AL-C 1 in. 7-1/16 (179) 9-11/16 (46) -1/16 (11) 3-3/4 (9) V46AM-C 1-1/4 in. 7-3/16 (18) -/8 (67) -1/16 () 6-3/16 (1) 3-1/16 () 1 Johnson Controls, Inc. 1 Part No , Rev. A

2 Manually Flushing the Valve Manually flush the valve and fluid piping before and after installing, repairing, or replacing a valve to remove filings, chips, or other foreign matter. Insert screwdrivers under both sides of the valve spring guide and lift upwards to flush the valve. See Figure. Manual flushing does not affect valve adjustment. Pressure Connections! WARNING: Risk of Personal Injury. Contents of liquid lines could be under pressure. Avoid possible personal injury by shutting off the liquid supply and relieving the pressure before servicing the valve. Range Spring Valve Spring Guide Top Retainer Range Adjustment Screw Insert screwdrivers underneath the valve spring guide. Connect the refrigerant-side flare connector to the appropriate high-side pressure tap point. If additional capillary tubing is necessary, use 1/4-in. copper tubing. Follow the guidelines below when making pressure connections: Use Pressure Tap Points Located on the Top Side of the Refrigerant Lines This reduces the possibility of oil, liquids, or sediment accumulating in the pressure connection line or valve bellows, which could cause valve malfunction. Figure : Manual Flushing Location Considerations Install the valve vertically with the range adjustment screw on the top and the bellows and pressure connection line on the bottom to allow drainage of oil and refrigerant away from valve bellows. Do not mount the valve in any position other than vertical unless specified by the manufacturer of the equipment on which the valve is installed. Follow the manufacturer's installation instructions. Install the valve on the inlet side of the condenser. If it is necessary to keep the condenser flooded with water, the valve may be installed on the outlet side of the condenser. If the system is located in an area with high ambient temperatures, refrigerant head pressures may remain high enough during off cycles to prevent the valve from closing completely. In such instances, the opening point of the valve should be raised just enough to cause the valve to close flow to the condenser during compressor standby periods. IMPORTANT: After installing the valve, evacuate bellows and pressure connection lines, in accordance with EPA and other regulations, to remove air, moisture and other contaminants. Avoid Sharp Bends in the Capillary Tubes Sharp bends can weaken or kink capillary tubes, which may result in refrigerant leaks or restrictions. Allow for Slack in the Capillary Tubes to Dampen Vibration Mechanical vibration can weaken or damage the capillary tubes. Avoid Contact Between the Capillary Tubing and Sharp or Abrasive Objects Vibration or rubbing of sharp or abrasive objects in contact with capillary tubes can cause leaks. Coil and Secure Excess Capillary Tubing Away from Contact with Sharp or Abrasive Objects or Surfaces Carefully loop any excess capillary tube into smooth, circular coils (minimum in. [ cm] diameter). Securely fasten the coiled capillary tube. Do Not Overtighten Flare Nuts on Pressure Connection Line Fittings Overtightening flare connections may damage the threads and result in refrigerant leaks. Do not exceed 9 lb ft (1 N m) of torque when tightening brass flare connections. V46 Series -Way Pressure-Actuated Water-Regulating Valves With Union Fittings Installation Instructions

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